15. L3 cache

16. Supports hardware-assisted virtualization

It is easier to obtain better performance when using virtualization if it is hardware-assisted.

Intel Xeon Processor E7-4890 v2

94% have it

17. memory channels

More memory channels increases the speed of data transfer between the memory and the CPU.

4

Intel Atom x5-Z8350: 12.8

18. Uses hyperthreading technology

Many of Intel's processors use hyperthreading, which means that each core of the processor can work on two threads at once instead of most processors which work on a single thread per core. This means you can have significant performance gains in certain applications.